Quality of service differentiation in wireless networks

Details Quality of service differentiation in wireless networks Quality of service differentiation in wireless networks

2005-01-12

2009-10-13

Ngo, Ricky (Department: 2416)

Multiplex communications

Data flow congestion prevention or control

C370S445000, C370S338000, C370S328000

Reexamination Certificate

active

07602707

ABSTRACT:
A method provides differentiated quality of service (QoS) by providing adaptive updates to media access control (MAC) layer parameters on a distributed basis. The method includes calculating a failure probability for a transmission over the network, determining a target value for determining a contention window according to a mapped function of the failure probability, and altering the contention window according to a scaling function of the target value. The mapped function and the scaling can provide QoS differentiation. A wireless device ensures fairness in a wireless time slotted network and includes a network interface card (NIC), a network driver interface, a network monitor, a statistics engine, and an adaptive parameter engine for determining a target value for determining a contention window according to a mapped function of the one or more probabilities to enable an alteration of the contention window and provide new parameters for the MAC layer.

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